When there wasn't a plentiful enough supply of this toxic substance arriving from outer space, various villains of Earths One and Two simply created Synthetic Kryptonite which had similar effects to the original. The Luthers, Doctor Vallin, Professor Benet and various others.. both good and bad scientists, synthesized this substance through various means. For instance, Vallin devised the means to do so by fusing gold, silver, lead, and bismuth with acid and crackling electricity. Luthor created his own variation from a Asian homocessandi plant, an oyster, moon dust and the rare element binarium. Additionally, more radical departures from the typical green Kryptonite replica were X-Kryptonite, Slow Kryptonite, Magno-Kryptonite, and Mutated kryptonite.. all which produced varying adverse affects on Kryptonians through initial exposure. In the case of X-Kryptonite, however, it enable humanoids and even animals like Streaky the Super-Cat to gain superpowers through temporary exposure.
The Flash Vs. Galactus
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